Do you know what truth or subsistence means to humanity?What does wisdom or knowledge mean to humanity?Do you really believe humanity has a choice for its future? If you are unsure of the answers to these questions, the short essays in this book may give you a better idea of that. This book consists of thirty essays that talk about how civilized human beings think, believe, and behave toward truth, goodness, wisdom, and knowledge from different perspectives. These essays were written in a leisure and humorous style, through which readers can easily get a glimpse of the author's philosophical ideas while avoiding difficult philosophical demonstrations.